{"id":"CVE-2018-12071","aliases":["EUVD-2022-3879","GHSA-g434-3q2j-hj4r"],"status":"published","title":"CodeIgniter Session Fixation Vulnerability","description":"A Session Fixation issue exists in CodeIgniter before 3.1.9 because session.use_strict_mode in the Session Library was mishandled.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01504,"percentile":0.74523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-384"],"published":"2018-06-17T20:00:00Z","modified":"2026-10-24T10:47:37Z","fixes":[{"ecosystem":"Packagist","package":"codeigniter/framework","fixed_in":["3.1.10"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"codeigniter/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.10"}]}]},{"source":"osv","ecosystem":"Packagist","package":"codeigniter/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.10"}]}],"versions":["3.0.0","3.0.1","3.0.1rc","3.0.1rc2","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0rc","3.0rc2","3.0rc3","3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.1.9"]}],"products":[{"vendor":"codeigniter","product":"codeigniter"}],"references":[{"url":"https://www.codeigniter.com/user_guide/changelog.html","tags":["x_refsource_CONFIRM","x_transferred","Release 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